- fields = form.visible_fields

#tree-error-modal.modal.hide.fade
  .modal-body
    %p
  .modal-footer
    %a.btn.btn-primary.modal-close{href: collection_path} Close
#tree{data: { 'bulk-actions-params' => '' }}
  -# %ul#treeData
  -#   = nested_tree_nodes form, collection

= render "forms/pagination", collection: form.collection

- expanded = cookies["#{resource_class.to_s.underscore}_fancytree_expanded"].to_s.split("~").map{|s| s.to_i}
:coffee
  $('#tree').fancytree
    extensions: #{list_section.extensions.to_json}

    # use checkboxes only if bulk actsions are enabled
    #{'checkbox: true' if list_section.bulk_actions}
    selectMode: #{list_section.select_mode.to_json}

    source: #{nested_tree_nodes(form, expanded, collection.where(ancestry: nil)).to_json}
    lazyload: (e, data) ->
      data.result = $.ajax({
        data:
          expanded: $.cookie("#{resource_class.to_s.underscore}_fancytree_expanded")
        url: "#{polymorphic_path([:load_tree_nodes, resource_class].flatten)}.json?parent_id=\#{data.node.key}",
        dataType: "json"
        method: "post"
      })

    persist:
      cookiePrefix: "#{resource_class.to_s.underscore}_fancytree_"
      types: "active expanded focus selected"
      overrideSource: true

    select: (e, data) ->
      nodes = data.tree.getSelectedNodes()
      ids = $.map(nodes, (node) ->
        node.key
      )

      $("#tree").data('bulk-actions-params', ids: ids)

    # merge default optiond with options defined in tree_list block
    dnd: _.extend({
      preventVoidMoves: true
      preventRecursiveMoves: true
      autoExpandMS: 400
      dragStart: (node, data) ->
        return true
      dragEnter: (node, data) ->
        return true
      dragDrop: (node, data) ->
        id = data.otherNode.key

        # nesting
        if data.hitMode == "over" # inserted into node
          parent_id = node.key
        else # inserted inside node
          parent_id = node.parent.key

        # assigned to root = no parent
        if parent_id.toString().indexOf "root", 0 == -1
          parent_id = "&parent_id=\#{parent_id}"
        else
          parent_id = ""

        id2 = node.key
        method = data.hitMode

        # TODO: use rails route helper for full route
        update_url = "#{collection_path}/\#{id}/update_tree?method=\#{method}&id2=\#{id2}\#{parent_id}"

        promise = $.post update_url, (data) ->
          if data and data.success == false
            $("#tree-error-modal").modal('toggle')
            $("#tree-error-modal .modal-body p").text(data.msg)

        promise.fail (response) ->
          $("#tree-error-modal").modal('toggle')
          $("#tree-error-modal .modal-body p").text(response.statusText + "\n Reload the page for sync current data.")

        data.otherNode.moveTo(node, data.hitMode)
    }, #{list_section.dnd.to_json})